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cache NULL each time I hit a button
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created by <a href="http://community.jboss.org/people/barbaraboie">barbara b</a> in <i>JBoss Cache Development</i> - <a href="http://community.jboss.org/message/579794#579794">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello</p><p>Before, I used a previous version of JBoss Cache where I simply could use in every bean CacheProvider:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> @In(create=true)</p><p> CacheProvider cacheProvider  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;">  </p><p> public void method(){     </p><p>      ...     </p><p>      List) cacheProvider.get("tree-"+id);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">  </p><p>      if (rubriek == null){          </p><p>           cacheProvider.put("tree-"+id,getTree());  </p><p>      }     </p><p>      ...</p><p> }  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and the caching worked just fine through the whole site.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Now I'm trying to work with JBoss Cache 3.2.5.GA and it's not working. Every time I click on a button, the cache is empty. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I started changing the code in each bean into</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>CacheFactory factory = new DefaultCacheFactory();</p><p>Cache cache = factory.createCache("cache-configuration.xml"); </p><p style="min-height: 8pt; height: 8pt; padding: 0px;">  </p><p>public void method(){     </p><p>      ...     </p><p>      Fqn fqn = Fqn.fromString("/id"+id) </p><p>      List) cache.get(fqn,"tree");       </p><p style="min-height: 8pt; height: 8pt; padding: 0px;">  </p><p>      if (rubriek == null){          </p><p>           cache.put(fqn,"tree",getTree());     </p><p>      }     </p><p>      ...</p><p> }   </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>When I tried this code, I saw that the cache was emptied each time I hit a button. I thought the problem was that I start in each bean a new Cache by using factory.createCache("cache-configuration.xml")</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>So I made a new class that can be used in every bean, so that the cache is only started once:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class CacheHelper{      </p><p>     public static CacheFactory  factory = new DefaultCacheFactory();       </p><p>     public static Cache cache = factory.createCache("cache-configuration.xml"); </p><p>}   </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>and in each bean</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public void method(){     </p><p>      ...      </p><p>      List) CacheHelper.cache.get(fqn,"tree");       </p><p>      if (rubriek == null){           </p><p>           CacheHelper.cache.put(fqn,"tree",getTree());     </p><p>      }     </p><p>      ...</p><p>} </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>But the cache is still empty each time I click on a button.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there anyone who can tell me what I'm doing wrong?</p><p>Thanks a lot in advance!</p><p>Barbara</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>O, this is my cache-configuration.xml</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p></div>
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<p style="margin: 0;">Reply to this message by <a href="http://community.jboss.org/message/579794#579794">going to Community</a></p>
        <p style="margin: 0;">Start a new discussion in JBoss Cache Development at <a href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2056">Community</a></p>
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